Natural Hazards: earthquakes are common, though usually not severe; volcanic activity ; volcanism: significant volcanism on North Island; Ruapehu (elev. 2,797 m), which last erupted in 2007, has a history of large eruptions in the past century; Taranaki has the potential to produce dangerous avalanches and lahars; other historically active volcanoes include Okataina, Raoul Island, Tongariro, and White Island